Locking device for dash-clocks.



G. W. WHITTEMORE & .I. H. WARNER,

100mm niv'lcs F011 n A sH cwcxs. APPLICATION FILED DEC. 30. I914;

Patented Nov; '2 1913.

I Th'e. inner,

' GEORGE WHITTEMORE, or

' l. To all whom it mag concern:

" Be it' known that we,

Molina citizen of the United States, residing at g I "and State of (h nnectic'ut, and JULIUS WARNER,

CONNECTICUT, assienons T0, THESES connnc'ricn'r, A conrona'rron.

Bristol, in the county knownas a 'cowl dashboard, and the object of ourimprovementissimplicity and economy-in' construction and convenience and efficiency in use."

. fragmentary side ocking device. jFig.

' supporting fir ng;

parts in gull-intermediate 'position.

: .Our -clocksis adapted for use with any clock 10,

In the Iaccompanyin'g'drawing: Fi re 1 is a front elev-atlon of a clock an orting ring equi'pped withPour improved 2 is a side elevation of the same. Fig. 3 1s a rear elevation of the same. Fig. {l'is a'front elevation of the Fig. 5 isf'a side elevation of the clock. Fig; 6 is a elevation on an enlarged scale of certain parts shown'in Fig. 2f 9 Fig. 7 is a similar view of the same with the Fig. 8 is a rear elevation-of the same. Fig. 9 is a rear elvationwith the parts in the position' shown infFig. 6.: Fig. 10- is a fragmentary viewcorrespo ding to Fig. 6. show-,

of the front end ing a latch spring provided with an integral p111." I device for dash locking such as shown, having a cylindrical casing, and a supporting ring 11 cooperating therewith; The supporting ring 11 comprises a fiat body portion having holes 12 for screws byw'hich it is mounted on the dashboard, a

' Y ner edgeof flange 13 'xtending forwardly from the in the said body portion, and a turned outer edge forming a rearwardly extending nm 14:.

forwardly extending flange 13 7 Specification of Letters Eatent. V h nc tionma D embe so, 1914, Serial No. 879,690.

spring 19,

BRISTOL, Ann JULIUS a. WARNER, 0E EonEsrvILLE, SIGNS CLOCK COMPANY, or onEs'rvILLE,

LOCKING D'EvIcE Fort DASH-CLOCKS;

Patented Nov. 2:, 1915..

' has on opposite sides a slot for a bayonet joint comprising a short longitudinally directed'entrance portion 15 extending rearwardly 4 16 extending circumferentially, the same as from the edge and a lateral portion shown extending righthandedly or clockwise.

In the body portion of the ring 11, as shown in the left side, and slightly above the entrance portion 15 of the slot memtioned, so as to be out of alinement therewith is a hole 17, in'which is positionedthe front end of 'apin l8 that slides back and forth therein, and which is mounted on the latch spring 19. The latch spring 19 is mounted on the rear face of the body portion of the ring 11, is formed of'flat spring material, is secured by its upper end by rivonet slot 15, extends downwardly adjacent theinner face of the said body portion, being suitably curved along the edges to conform to'the shape thereof, has the pin 18 secured to the lower end portion and adjacent the said lowerend portion as a pair of inwardly directed arms, respectively a lower --ets 20, positioned appreciably above the bayarm 21'and an upper arm 22, separated by a slot 23. The arms 21 and 22 overhang the inner wall of the inner cylindrical flange '13. That is to say, the arms 21 and 22 extend inwardly into the interior space inclosed by the ring 11; The latch spring 19 is so formed and portion is held in abutment with the. rear face of the body portion of the ring 11 so that -it tends to hold the pin 18 projected forwardly to the maximum extent, and the sameis held in such position normally. The pin 18 may be a separate piece, secured to the spring 19 by riveting or as shown in Fig. 10 the pin ls may beintegral with the and formed by a forward projectionof the material of the spring. The

' plane. The slot 23zis a fit for a locxin pin 24 on the clock 1Q,' and when the sai pin is positioned therein the clock 10 islocked in the ring 11, ag'amstrotative movement.

secured that the lower end 21 is backof the entrance portion 7 Rotation in the clockwise direction is prevented by the upper arm 22 and in the counter-clockwise direction by the lower arm 21, in engagement with the locking pin 24. Rotation in the clockwise direction is also limited by the end of the lateral branch 16 of the bayonet slot in cooperation with the radial pin 25 on the clock 10, so that in some cases the upper arm 23 may be dispensed with.

The clock 10 comprises a cylindrical body portion 26 of appreciable length and a head portion 27 at the front end enlarged relatively to the said body portion 26 provided on the front end with a still further slightly enlarged rim 28. The-said head portion 2 fits in the forwardly extending flange 13 in position within the ring 11 the head portion 27 is entered within the flange 13 and with the radial pins in registration with the entrance portion 15 of the bayonet slots. This operation brings the locking pin 24 into abutment with the lower arm 21 of the latch spring 19. As the clock 10 is pushed rearwardly the arm 21 and the lower end port1on of the spring 19 are pushed rearwardly correspondingly, imtil the radial pins 25 are brought into registration with the lateral branch slots 16, so that turning the clock brings the radial pins into engagement with the said branch slots 16. The engagement of the radial pins 25 with the lateral slots 16 serves assecuring means for generally securing the clock 10 in position in the ring 11.

During the turnin movement described the locking pin 24 slips off from the lower arm 21 into the slot 23, between the two arms, and the spring 19 is free to return to its normal position, with the lower end in which serves as a latch handle,

the maximum forward position.

The engagement of the locking pin 24 with the lower arm 21 prevents turning the clock 10 back to the unlocking position. By providing the second arm 22 and having the locking pin 24 a good fit for the slot 23 the clock 10 is securely locked'in position in SliCll a manner as to prevent rattling or free P 7- a In order to release the clock the pin 18, is pushed rearwardly so that the locking pin 24 can with the entrance slots 15, when the clock 11 is free to be pulled out from the supporting Ilng.

It will be noted that the only portion of the locking device that is visible from the front is 12 the latch handle or operating pin 18, and there are no-indications from the front View of the manner of removal of the clock, the locking device being essentially in the class of asecret lock. Furthermore, in placing the clock in looking position there is no manipulation whatsoever of the locking device on the part of the operator and in removing the clock the only part of the looking device operated on is the pin 18.

While as shown and described the locking pin 24 and the corresponding radial pin 25 on the clock 10 are in the same axial plane, and the parts on the ring 11 that cooperate therewith in the initial movement of bringing the parts to the locking position consisting of the lower arm 21 on the latch spring 19 and the entrance portion 15 of the bayonet slot are also in the same plane, and these planes coincide during such initial movement, it will be understood that the bayonet joint feature of our device, comprising the radial pins 25 and the ba onet slots may if desired be located at di erent positions relatively to the locking device, consisting of the locking pin 24 and the latch spring 19. Also, while it is preferred to have two bayonet joints, it is understood that in some cases one of these may be omitted.

. We claim as our invention 1. A dash device and clockcombination comprising a circular dash device and a clock having overlapping cylindrical portions, the said dash device having a plane and radial body portion provided with a rearwardly turned edge at the periphery, a

j locking device comprising a spring device on the said dash device and a pin on the said clock, and the said spring device being housed in the space inclosed by the said rearwardly turned edge.

2. ring and a clock fitting therein, holding means operative by 'a llmited relative longitudinal and .rotative movement of the said ring and clock, locking means serving to lock the said ring and clock against re- ,turn rotative movement responsive to such a relative longitudinal and rotative movement thereof, the said ringcomprisi-ng-a flat, annular body portion, and a releasing device for the said locking means comprising a push pin extending through the said body portion.

- 3; A dash and clock combination comprising a dash member and a clock member having overlapping cylindrical portions, the said dash member comprising a flat radial face extending outwardly from its overlapping portion, the said clock having a fiat,

radial face extending inwardly from its overlapping portion, and a locking device comprising a pair of cooperatingengaging GEORGE-WWHITTEMORE. JULIUS H. WARNER.

Witnesses:

R. W. EDW RDS, LoUIs M. SCHMIDT. 

